Hisense LCD42P69P manuals
TV and Video > Flat Panel Television
When we buy new device such as Hisense LCD42P69P we often through away most of the documentation but the warranty.
Very often issues with Hisense LCD42P69P begin only after the warranty period ends and you may want to find how to repair it or just do some service work.
Even oftener it is hard to remember what does each function in Flat Panel Television Hisense LCD42P69P is responsible for and what options to choose for expected result.
Fortunately you can find all manuals for Flat Panel Television on our side using links below.
Hisense LCD42P69P Service Manual
51 pages 2.29 Mb
LCD Television Service Manual Hisense Electric Co.Ltd. March2009 2 Contents 3 Service Manual 39 MT8222_P1V1 (DDR1) VERSION V1.0SFlash DDR1 LVDS out E2PROMVout = 1.25 x ( 1 + 110/ 110 ) = 2.5V for DDR200/266/333 5V to DDRV 3.3V to 1.2V MUST USE AP1533If use sdram ,NC FB14 If use ddr ,NC FB14 Power LDO 40 Works at normal modePower for MT8222 only ( Always on )1.2 x (21K+12K)/12K= 3.3V Vout = 1.25 x ( 1 + 120/ 110 ) = 2.6V for DDR400/500 0.8 x (1+0.51K/2K) = 1.0V Core Power 1.0V 5V to 1.0V LDO#1 LDO#2 LDO#312V to 5V For Tuner 5V power Switch RegulatorUP31 HIGH :POWER OFF UP31 LOW: POWER ON Test GND Pin ( Spread Around PCB )MAIN POWER MUST USE AP1122 5V to 3.3V Audio VMID control 41 MT8222Game Port ConnectionLVDS INTERFACE YPbPr input MT8222GPIO Serial Flash IF Mux out from CD4052B XTAL Dip/SMD Dual LayoutCVBS inputSystem I2C Tuner Signals SPDIF IN / OUT Audio DAC out CVBS OUT I2S IF USB TRAP VGA input HDMI MT8222 U34 42 ( Bypass CAPs arround MT8222 )43 ( DDR1 DRAM With Termination )2008/05/08 MODIFY If use SDRAM NC RD7/RD8 LP2996 for Vref and VTT of DDR1If use ddr CD34 CD26 CD27 RD9 CD28 CD29 CD30 UD2 ON DDR1 DRAM If use sdram CD34 CD26 CD27 RD9 CD28 CD29 CD30 UD2 NC 2008.6.4 44 System E2PROM System Reset#Serial Flash ADJ 2008/05/05 MODIFY OPTION for CEC Stand by Function IREMC IO 8222 FCI/USB/Flash/Peripheral MEMORY CARD I/F GPIO RESERVED 1st UART IF ( For Code download and Debug ) 2nd UART IF MT8222 TrappingPIN4. PWR PIN3. RXD PIN2. TXD PIN1. GND ADC KEYPAD2008/05/05 MODIFY R25&C290 Near the 8222 place P14P14 OUT IN 45 HDMI port 0HDMI port 1HDMIX3 ( HDMI Hot Plug Detect ) HDMI port 2
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